Deep and shallow well pump



5,, 1949. H. H. WOLFE ETAL v 2,475,118

um um snmow imam. PHI? 5 Sheets-Sheet 1 Filed 0M. 15, 1945 INVENTORS H.H|X WOLFE DWARD MHAAS ATTORNEYS;

JulyS 19490 H. H. WOLFE mm.

DEEP MID SHALLOI WELL PUIP 5 Sheets-Sheet 4 filed 0m 15, 1945 INVENTORS H. HIX WOLF; EDWARD W. HAA BY ATTORNEYS m W, Wm WM m m 5 Shma'tS-Sheet. 5

INVENTOILS H. rux WOLFE EDWARD H. HAAS 6'. W A TTURNEYS Patented .July 5, 1949 DEEP AND SHALLOW WELL PUMP H. Hix Wolfe and Edward W. Haas, Dayton, Ohio,

assignors to The Dayton Pump and Mfg. Company, Dayton,

Ohio, a corporation of Ohio Application October 15, 1945, Serial No. 622,240

9 Claims. (Cl. 103-5) This invention relates to deep and shallow well pumps, and particularly to pumps employing means for readily converting such pumps to deep or shallow well or vice versa.

It is an object of this invention to provide a pump in which the distribution casing for the separation of air and water contains the casing which in turn contains the pump impeller.

It is another object to provide the closure for this casing at one end so that it performs the dual function of acting as such a closure as onehalf of the impeller casing, and as a partial support for the driving motor.

It is a further object to provide in the casing for a circulatory passageway upwardly or downwardly to a pressure tank or to the other parts of the water system.

The particular object of the invention is to provide a distribution casing which encloses the ejector so that the substantially air free water can enter the ejector and induce the flow of water from the well as the pumped water passes through the venturi of a jet pump aligned with the eye of the centrifugal pump impeller. The circulatory passageway in the distribution casing serves as a support for the removable flanged ejector cartridge and for the suction pipe connected in the well. This eliminates external castings and other mechanism of the distribution casing and reduces the complexity of the resulting structure.

It has a further advantage in that the suction pipe remains in the same position whether it is a deep well or shallow well. In order to convert from a shallow well to deep well it is only necessary to remove the flanged ejector cartridge and substitute a flanged plug tapped to receive a fluid pressure pipe connected to an ejector in the well which is also connected to the suction pipe. There is, therefore, only one additional pipe connection to be made at the pump in connection with the conversion from shallow to deep well.

It is a particular object of this invention to provide a unitary construction of the jet venturi and flanged body in a simple cartridge form, whereby the jet and venturi are held in proper relation, one with the other, and may be readily removed from the distribution casing.

It is a further object of the combination to provide for a novel mounting of the pump and motor or pump assembly upon a pressure storage tank so a unitary structure can be provided.

Referring to the drawings:

Figure 1 is a perspective of the pump arranged for shallow well operation illustrating partially the pressure tank which supports the pump.

Figure 2 is a similar view showing the arrangement for deep well operation.

Figure 3 is a vertical section through the pump and its mechanism showing the arrangement for shallow well operation.

Figure 3a shows the flanged ejector cartridge for shallow well.

Figure 4 is a similar view showing ment for deep well operation.

Figure 4a shows the flanged plug for dee well.

Figure 5 is a section on the line 5-5 of Figure 3 looking in the direction of the arrows showing the arrangement of the suction pipe with respect to the ejector.

Figure 6 is a section on the line 6-8 of Figure 3 looking in the direction of the arrows.

Figure 7 is a section on the line 1-1 of Figure the arrange- 3 looking in the direction of the arrows.

Figure 8 is a section on the line 8-8 of Figure 6 looking in the direction of the arrows.

Referring to the drawings in detail, i designates a. platform on which the feet 2 of a-pressure tank 3 are attachedby the bolts 4. Mounted upon the pressure tank is the motor, pump and distribution casing assembly arrangement as follows.

The brackets 5 are welded upon the surface of the tank 3 and support the feet 6 of the central casting 1 surrounding the pump housing. These feet s are retained on the brackets 5 by the retaining screws 8. The central casting I supports on one side the electric driving motor 9 and on the other side the distribution casing l0.

Turning to the details of the pump and eject ing mechanism as shown in Figures 3, 4, 5, 6, 7, and 8, the motor 9 is detachably attached by the bolts H mounted in the eyes l2 of the attaching bracket or ring 13 to the central casting l which is a part of the casting which also extends to form the distribution chamber to. This casting is so arranged that there is located between it and. the motor supporting casting or bracket M a partition plate H, a flange of which i5 is clamped between the bracket l3 and the central casting. The partition It serves as one side of a pump casing which contains the impeller iii. The other side of this pump casing is formed by a cover plate I! attached by the bolts IE to the partition M. The details of the arrangement of this casing and the interior guide vanes in it are shown in Figures 6, 7 and 8 and will be described hereinafter.

The partition I4 is connected by the bolts IE to the motor supporting casting l3. This partition plate is formed with a laterally disposed cup 20, which supports a seal seat 22 in cushion 2|. Sleeve 23 supports rotary seal assembl 28.

arms

Spring 28 engages hub 21 of sleeve 22, exerting pressure between-rotary seal 24 and seal seat 22. Sleeve 23, which is the hub of impeller it, closely engages the straight portion of shaft 24 of motor 9, providing for concentric alignment of impeller I6. Thread 25 of shaft 24 engages and drives impeller Hi. When impeller I is tight on thread 25, end of sleeve 23 thrusts against washer and shoulder on shaft 24, and with rotary seal assembly 28 insulates steel shaft 24 against corrosive action of water. The detail of the rotary seal forms no part of this invention and requires no further detailed description.

The casing III which is formed as a part of the central casting provides a chamber 29 into which water is pumped by the impeller it through its pump casing into this chamber. The pumped fluid which has some entrained air by reason of its entering into the expansion chamber 28 is about to release its air and distribute it through its port 30. The discharged water can make its exit through the port 30 and through the passageway 3i through the pipe 32 into the interior of the tank 3 or it may be discharged upwardly through the ports Ill and 33 to a pressure tank or other part of the water system, upon the removal of the screw plug I4, and its insertion in lower opening of passage I l This passageway 3i serves as a support for an integral sleeve 35 which has. a transverse web 35 that supports the central portion of the ejector assembly (Fig. 3a). The right-hand end of this ejector assembly projects through a wall of the passageway casting II to a point adjacent to the rotating hub 38 of the impeller I8. A seal between the pump casing cover i1 and this casting composing the passageway is provided, consisting of a resilient sealing member 39 mounted upon a. bearing sleeve 40. This construction positively prevents the entry of water under pressure from chamber 29 to the inlet of the impeller. Seal assembly 39 and 40 is self aligning thereby making it unnecessary to provide perfect alignment of ejector and hub 38 of impeller IS.

The casting 35 is extended to the left into an expanded chamber 43. The left-hand end of this chamber is utilized to receive a shoulder of ejector (Fig. 3a) against a resilient gasket. The chamber 43 formed by the large extension H is the suction chamber. pipe 44 and supplies fluid from the well which is induced by the movement of the substantially air free water through the nozzle 42 into the Venturi tube 31. Likewise, this chamber is connected to the pipe 45 which in turn is connected to a conventional air charger valve 45a for controlling the volume of air in the tank 3.

The' distribution casing I II is provided with an end port 46, which when used on a shallow well receives the ejector assembly Fig. 3a, which is held in position by bolts 49. Referring to the ejector assembly.Fig. 3a. 48 shows the flanged ejector body, which receives jet 42 and venturl 37 in a predetermined relation fixedly, thereby forming a novel unitary construction, which may be removed as a unit only. Openings 50 in ejector body 48 permit passage of water under pressure from chamber 20 to jet 42 and into venturi 31, which induces the flow of water from the well through chamber 4! and venturi 31 to inlet of impeller l6.

Referring to the deep well arrangement shown in Figures 2, 4 and 4a, it will be observed that the shallow well ejector cartridge Fig. 3a, has

It is connected to the suctionbeen removed and replaced by the deep well plug Fig. 4a, with ejector or pressure pipe Si in place. In this arrangement it will be observed from Figure 2 that the pipe 5i supplies the substantially air free water to the ejector casing 62 in the well which in turn is connected to the suction pipe 44 that supplies fluid into the chamber 43 and 43aand thence through the eye of the impeller.

Referring to Figures 6', 7 and 8, it will be observed that the impeller It delivers the fluid from between its plates lBa into the arcuate discharge passageways I61: and Ne and thence out the openings id and lie, into pressure chamber 29, where it is delivered partially through openings 50 to ejector pipe BI, and thence to ejector casing 52 in the well, which is in turn connected to suction pipe 44, and partially through port 30 and passage ii to storage tank, or if desired, through port and passage 33 (with plug 34 removed) to other parts of the system.

While the apparatus disclosed and described herein constitutes a preferred form of our invention, it will be understood that the apparatus is capable of alteration without departing from the spirit of the invention, and that all modifications that fall within the scope of the appended claims are intended to be included herein.

We claim:

1. Pumping apparatus including a jet pump and a centrifugal pump in series, a casing forming an air separating chamber, said centrifugal pump having a pump housing within said casing, an opening in said casing, a passageway means forming an inlet for fluid within said casing to said pump, conduit means forming an inlet for fluid extending through said casing and into said inlet passageway, an exit opening in said air separating chamber casing, an exit passageway in communication with said exit opening and extending across the interior of said casing at substantial right angles to said passageway means and extending out of the air separating chamber casing, said exit opening and exit passageway being located between the said centrifugal pump and the conduit means which extends into the said passageway means.

2. Pumping apparatus including a jet pump and a centrifugal pump in series, a casing forming an air separating chamber, said centrifugal pump having a pump housing within said casing,

an opening in said casing, a passageway means forming an inlet for fluid within said casing to said 'p'ump, conduit means forming an inlet for fluid extending through said casing and into said inlet passageway, an exit opening in said air separating chamber casing, an exit passageway in. communication with said exit opening and extending across the interior of said casing at substantial right angles to said passageway means and extending out of the air separating chamber casing, said exit opening and exit passageway being located between the said centrifugal pump and the conduit means which extends into the said passageway means, said jet pump being located in said passageway means.

3. Pumping apparatus including a jet pump.

and a centrifugal pump in series, a casing forming an air separating chamber, said centrifugal pump having a pump housing within said casing,

fluid extending through said casing and into said inlet passagewa an exit opening in said air separating chamber casing, an exit passageway in communication with said exit opening and extending across the interior of said casing at substantial right angles to said passageway means and extending out of the air separating chamber casing, said exit opening and exit passageway being located between the said centrifugal pump and the conduit means which extends into the said passageway means, pipe means adapted to extend into a well including a pressure pipe and a suction pipe and means connecting said pipes, said jet pump being located in said pipe means, said pressure pipe being connected to the said opening in said casing, and the said suction pipe being connected to said conduit means.

4. Pumping apparatus including a jet pump and a centrifugal pump in series, a casing forming an air separating chamber, said centrifugal pump having a pump housing within said casing, an opening in said casing, a passageway means forming an inlet for fluid within said casing to said pump, conduit means forming an inlet for fluid extending through said casing and into said inlet passageway, an exit opening in said air separating chamber casing, an exit passageway in communication with said exit opening and extending across the interior of said casing at substantial right angles to said passageway means and extending out of the air separating chamber casing, said exit opening and exit passageway being located between the said centrifugal pump and the conduit means which extends into the said passageway means, an additional opening in said air separating chamber casing forming an additional exit for fluid in said air separating chamber casing at the entrance to said exit passageway for bypassing said exit passageway.

5. Pumping apparatus including a jet pump and a centrifugal pump in series, a casing forming an air separating chamber, said centrifugal pump having a pump housing within said casing, an opening in said casing, a passageway means forming an inlet for fluid within said casing to said pump, conduit means forming an inlet for fluid extending through said casing and into said inlet passageway, an exit opening in said air separating chamber casing, an exit passageway in communication with said exit opening and extending across the interior of said casing at substantial right angles to said passageway means and extending out of the air separating chamber casing, said exit opening and exit passageway being located between the said centrifugal pump and the conduit means which extends into the said passageway means, said exit passageway at a least partially surrounding said passageway means.

6. Pumping apparatus including a jet pump and a centrifugal pump in series, a casing forming an air separating chamber, said centrifugal pump having a pump housing within said casing, an opening in said casing, a passageway means forming an inlet for fluid within said casing to said pump, conduit means forming an inlet for fluid extending through said casing and into said inlet passageway, an exit opening in said air separating chamber casing, an exit passageway in communication with said exit opening and extending across the interior of said casing at substantial right angles to said passageway means and extending out of the air separating chamber casing, said exit opening and exit passageway being located between the said centrifugal pump and the conduit means which ex-Y tends into the said passageway means, a motor for driving said pump and means for clamping said centrifugal pump and pump housing to the air separating casing adjacent one end thereof, whereby said motor and pump casing may each be removed as an entirety from said air separating chamber casing.

'7. Pumping apparatus including a jet pump and a centrifugal pump in series, a casing forming an air separating chamber, said centrifugal. pump having a pump housing within said casing, an opening in said casing, a passageway means forming an inlet for fluid within said casing to said pump, conduit means forming an inlet for fluid extending through said casing and into said inlet passageway, an exit opening in said air separating chamber casing, an exit passageway in communication with said exit opening and extending across the interior of said casing at substantial right angles to said passageway means and extending out of the air separating chamber casing, said exit opening and exit passageway being located between the said centrifugal pump and the conduit means which extends into the said passageway means, said pump having a rotary hub extending from said pump casing toward said exit passageway, and

sealing means mounted on said hub for preventing the, entry of fluid under pressure to the inlet of said pump.

8. Pumping apparatus including a jet pump and a centrifugal pump in series, a casing forming an air separating chamber, said centrifugal pump having a pump housing within said casing, an opening in said casing, a passageway means forming an inlet for fluid within said casing to said pump, conduit means forming an inlet for fluid extending through said casing and into said inlet passageway, an exit opening in said air separating chamber casing, an exit passageway in communication with said exit opening and extending across the interior of said casing at substantial right angles to said passageway means and extending out of the air separating chamber casing, said exit opening and'exit passageway being located between the said centrifugal pump and the conduit means which extends into the said passageway means, a motor for driving said pump, said casing having wall means for mounting the motor on said wall, a tank having an opening in the top thereof in communication with the exit opening of said exit passageway and means for mounting said casing on said tank.

9. Pumping apparatus including a jet pump and a centrifugal pump in series, a casing forming an air separating chamber, said centrifugal pump having a pump housing within said casing, an opening in said casing, a passageway means forming an inlet for fluid within said casing to said pump, conduit means forming an inlet for fluid extending through said casing and into said inlet passageway, an exit opening in said air separating chamber casing, an exit passageway in communication with said exit opening and extending across the interior of said casing at substantial right angles to said passageway means and extending out of the air separating chamber casing, said exit opening and exit passageway being located between the said centrifugal pump and the conduit means which extends into the said passageway means, a motor for driving said pump, said casing having wall means for mounting the motor on said wall, a tank having an opening in the top thereof in com- 7 munication with the exit opening of. said exit eway and means for mounting said casing on said tank, said means for mounting said motor on said wall serving to clampingly engage said mus pump housing between said casing and said motor. 5

H. HIx wows. EDWARD w. m ss.

REFERENCES CITED The following rei'erenloes are of record in the .flle of this patent:

8. UNITED s'm'ms PA'I'ENTS Number 

